Improvement in



FLM. IRONS. Machine forSeaming', Grooving, and Beading Metal Pipes.

No. 201,|s2. Pate nted March 12,1878.

iii

WITNESSES:

N4 PETERS. PHO D-LlTHOGR AFHER WASHlNGTON. D C v UNITED STATES PATENTOEEIoE.

FRANK M. IRONS, OF GREENVILLE, MICHIGAN.

IMPROVEMENT INMACHINES FOR SEAMING, GROOVING, AND BEADING METAL PIPES.

Specification forming part of Letters Patent No. 201,182, dated March12, 1878; application filed November 15, 1877.

To all whom it may concern:

Be it known that I, FRANK M. IRoNs, of Greenville, in the county ofMontcalm and State of Michigan, have invented certain new and usefulImprovements in Machines for Grooving Metal Pipes; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skiiled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to an improvement in machines for grooving metalpipes; and it consists in hinging or pivoting the frame in which thebeading and chamfering rollers are secured upon the top of the rear endof the arm or frame over which the pipes are passed as they are beingseamed, as will be more fully described hereinafter.

The accompanying drawings represent my invention.

a represents a machine for seaming the pipes, and may be of the sameconstruction as that shown in the patent recently granted to me, June19, 1877, No. 192,071, or any other that may be preferred.

Pivoted to the flange formed upon the top of the rear end of the arm 0is a frame, d, upon which the two rollers e are journaled. These rollersare for beading and chamfering the ends of the pipes, and are so placedthat as the pipes advance along over the arm the end will pass inbetween these two rollers.

It will be noticed that the lower one of these rollers is sunk into arecess formed in the top of the arm, so that only its upper half orportion is exposed.

Owing to the difference in the tenacity of Russia and common iron inmaking pipes, some provision must be made for the removal of theserollers at any time, or else there must 'metal pipes, a frame, d, hingedor pivoted upon the rear end of the arm 0, substantially as and for thepurpose shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this12th day of October, 1877.

FRANK M. IRONS. Witnesses:

WILLIAM E. HoYT, O. O.

